Primitives

Question 1

variable can change type!

Answer 1

let nums = 12;

nums = false;

nums = 1234;

it may not be a very good idea

Question 2

string quotes

Answer 2

can be single or double, you can even use double inside single or vice versa

‘he said, “haha” ‘
“he said, ‘haha’ “

good practice to be consistent about the choice inside a project

Question 3

type of var operator

Answer 3

typeof 87 //”number”